Raker saw-gage.



No. 756,425. PATENTED APR. 5, 1904. STEPHENS. RAKER SAW GAGE.

APPLICATION FILED JULY 14, 1902.

no MODEL.

ma cams PETERS c0. Puo-rmhnu, WASNMBTON. n. c.

Patented April 5, 1904i UNTTED STATES PATENT OFFICE.

WILLIAM STEPHENS, OF MONTESANO, WASHINGTON.

RAKER SAW-GAGE.

SPECIFICATION forming part of Letters Patent No. 756,425, dated April 5,1904.

Application filed July 14, 1902.

To a whmn it may concern:

Be it known that I, WILLIAM STEPHENS, a citizen ofthe United States,residing at Montesano, in the county of Chehalis and State ofI/Vashington, have invented a new and useful Raker Saw-Gage, of whichthe following is a specification.

This invention is an improvement in implements employed in connectionwith the filing, gaging, swaging, and jointing of saws; and its objectis to enable the teeth to be brought into uniform condition as to lengthand set.

The invention consists in certain novel features of construction, ashereinafter shown and described, and specified in the claims.

In the drawings illustrative of the invention, Figure 1 is a sideelevation of the device applied. Fig. 2 is a top plan view. Fig. 3 is abottom plan view with the frame in section on the line III III ofFig. 1. Fig. 1 is a view similar to Fig. 1, illustrating a modificationin the construction. Fig. 5 is a transverse section on the line V V ofFig. 4:, illustrating the manner of employing the device in jointingsaws.

In this invention is comprised a frame 10 of suitable width andpreferably formed with interstices, as shown, to lighten it and withribs 11 12, extending laterally from one edge, the ribs having a spacebetween their adjacent ends and the frame 10 having a recess in its edgeopposite the space between the ribs and affording means for thereception of a slotted gage-plate 13. The plate 13 is secured removablyto the plate 10, as by screws 1 1, the body of the plate being uniformin width with the thickness of the plate 10 and with a projectingportion 15 lying parallel to the body portion 13 and connected theretoat one end only, as shown at 16. Beneath the ribs 11 12 are securedsprings 17 18,each rib having its own independent spring, asshown, andattached by their outer ends only to the outer portions of the ribs 1112, leaving their inner ends free and extending slightly beyond theinner ends of the ribs, as shown. Engaging the ribs 11 12 near theiradjacent or inner ends are adjusting-screws 19 20, each screw adapted topass through its respective rib and engage its respective springplate 1718, and thereby adjust them nearer Serial No. 115,500. (No model.)

to or farther away from the plate 13 and its extension 15. Each of theadjusting-screws will be provided, preferably, with a janib-nut 21 22,as shown, to lock the adjusting-screws in position and also to supportthe jointingfile, as hereinafter shown. The inner faces of the ribs 1112 will be some distance above the outer face of the plate 13 and itsextension 15, as shown, so that the spring-plates 17 18 may be adjusteda corresponding distance.

In the ordinary form of crosscut-saws a certain number of the teeth arearranged as rakers or clearers, and these raker-teeth are arranged atpredetermined intervals and shorter than the cutting-teeth and ofuniform length, and one of the principal uses to which the presentdevice is appropriated is to assist the filer in cutting off or swagingthese raker-teeth. to a uniform length.

In the drawings a section of a saw of the ordinary form is indicated bydotted lines in position in the implement, 23 representing the body orback of the saw, 24 the cutterteeth, and 25 one of the raker or clearingteeth. The raker-teeth are either filed off to form them shorter thanthe cutting-teeth or swaged by turning points of the teeth outward,

as indicated at 26. The spring 17 is formed with a supplemental stop ortransverse notch 27 to serve as a gage to guide the filer in swaging theraker-teeth, as hereinafter described. The implement may be employed forthe purpose of a gage in cutting ofi the rakerteeth or as a gage toguide the operator in swaging raker-teeth or as a support for the filewhen jointing the saw. When employed as a gage to guide the filer incutting off the rakerteeth, the plate 13 will be employed; but whenemployed as a guide to the operator in swaging the raker-teeth the plate13 will be detached, as hereinafter shown. When employed as a jointer,the device will be employed, as shown in Fig. 5, with the file(represented at 28) supported by-one edge by the jam-nuts 20 21, asshown. When used as a jointer, the frame 10 will be reversed and therear side placed next the face of the saw, with the file extending overthat side and in position to engage the points of the teeth with theframe 10 in contact with the saw and serving as a guide to the file andhold it in proper relations to the saw-teeth.

In using the device with the plate 13 attached the implement is placedin position with the tooth which it is designed shall be a raker-toothwithin the cavity between the plate 13 and its extension 15, with theadjacent cutting-teeth on either side engaging the springs 17 18. Asbefore stated, the plate 13 and its extension come some distance belowthe lower line of the springs 17 18, which will cause the points of thetooth which it is designed shall be a raker-tooth to extend above theupper surface of the plate 13. The filer will then file off theseprojecting ends and move the implement to a position in connection withthe next tooth which it is designed shall be a raker-tooth, and so on,thus insuring a perfect uniformity to the rakerteeth.

It will be readily understood that the height I of the raker-teeth maybe perfectly adjusted by means of the spring-plates 17 18, which areadjustable by the set-screws 19 20.

With this simple device the raker-teeth may be formed of exact uniformlength and perfectly conforming to and without in any manner effectingthe integrity of the cutter-teeth.

The plate 13 and its extension 15 will preferably be of chilled iron orhardened steel,

so that the file will not affect it and which will indicate to the filerthe requisite amount which shall be filed off from the raker-teeth.

The plate 13 is preferably detachable for renewal or repairs and toenable the operator to use the implement without the gage when theraker-teeth are to be swaged instead of filed off.

When employed as a guide to assist the operator in swaging the teeth,the stop 27 comes into action, serving as a stop to the last toothswaged and coacting with the springs 17 18 to indicate the exactrelative lengths of the teeth. In employing the implement for thispurpose the springs 17 18 are adjusted to engage the cutter-teeth onopposite sides of the tooth to be swaged. One point is then swaged tothe desired height or until it just engages the stop 27 and then theother point of the same tooth swaged until it will engage the stop, whenthe implement is reversed, and so on throughout the whole length of thesaw. By this simple'means an implement is produced which may be readilyadapted to guide the saw-filer in cutting off or swaging the raker-teethor in jointing the saw and will greatly facilitate these operations andmaterially reduce the labor necessary to perform or not the jointer-fileis exactly at right angles with the side of the saw, which position itis necessary for the jointer-file to occupy to ini The device will thusnot only be of great;

advantage to the skilled operator, as by its employment his work will begreatly facilitated, but will also be very convenient to the unskilledoperator, as by its use a person without previous knowledge or skill cando as good work as the most skilful operator.

Having thus described my invention, what I claim is 1. A saw toolcomprising a supportingframe having spaced yieldable plates extendinglaterally therefrom and stationary at their outer ends and movable attheir inner opposing ends, a stationary gage-plate detachably connectedto said supporting-frame between said spaced plates and out of alinementwith them and ad justing-screws engaging threaded openings in said frameand adapted to depress the movable ends of said spaced plates relativeto said gage-plate, substantially as described.

2. A saw tool comprising a supportingframe having spaced ribs extendingtherefrom, yieldable plates connected by their outer ends to the outerends of said ribs and movable by their inner ends, a gage-platedetachably connected to said supporting-frame between said spaced platesand out of alinement therewith, and adjusting-screws engaging threadedopenings in said ribs and adapted to depress the movable ends of saidspaced plates toward said WILLIAM STEPHENS.

Witnesses:

W. H. BUsH, J. W. PE'rrIJoHN.

